中间隔了几个星期又回来跟逻辑小分队了
【精练】
1) 计时：15s
2) 逻辑链
Background Information:
Human beings have cognitive faculties that are superior to those of other animals
Premise:
好像找不到P。。
Conclusion:
Human cannot be made happy by anything that does not involve gratification of these faculties.
3) 推测：Weaken
答案应该是举Conclusion的反例
4) 选项分析：排除法选B
(A) Certain animals—dolphins and chimpanzees, for example—appear to be capable of rational communication. 本文关注的是human而非animals
(B) Many people familiar both with intellectual stimulation and with physical pleasures enjoy the latter more. 其实也没看懂这个选项
(C) Someone who never experienced classical music as a child will usually prefer popular music as an adult. 支持，not weaken。 Never experience classical music - prefer popular music
(D) Many people who are serious athletes consider themselves to be happy. 无关
(E) Many people who are serious athletes love gourmet food. 无关
【逻辑链】
21. 这题没怎么懂，求问B为什么不对
1) 计时：62s
2) 逻辑链
Premise:
Both the wild form and cultivated form of emmer wheat has been found growing in a relatively narrow strip of southwest Asia.
Conclusion:
Emmer wheat was first domesticated somewhere in that strip.
3) 推测：
排它因或者直接加强
4) 选项分析：纠结B&D 最后选B
(A) The presentday distribution of another wild wheat, einkorn, which was also domesticated early in the development of agriculture, covers a much larger area of southwest Asia. 无关
(B) Modern experiments show that wild emmer wheat can easily be domesticated so as to yield nearly as well as traditionally domestic strains. 排除wild emmer在其他地方也长过（narrow strip of southwest Asia is not the only place where the wild form of emmer wheat has been found growing.）只不过没活下来的可能性。
(C) At the time when emmer wheat was first cultivated, it was the most nutritious of all the varieties of grain that were then cultivated. 无关
(D) In the region containing the strip where wild emmer wheat has been found, climatic conditions have changed very little since before the development of agriculture. 无关
(E) It is very difficult, without genetic testing, to differentiate the wild form of emmer wheat from a closely related wild wheat that also grows in southwest Asia. Weaken
22.
1) 计时：18s
2) 逻辑链
Background Information:
In the late 1980s, the population of sea otters inthe North Pacific began to decline.
Premise:
a concurrent sharp decline in populations of seals and sea lions isbelieved to have been caused by disease
Conclusion:
diseases that infect these creatures are likely to be able to infect sea ottersalso.
3) 推测：
选项会引导我们推测出真正原因是killer whales
4) 选项分析：
(A) Killer whales in the North Pacificusually prey on seals and sea lions but will, when this food source is scarce,seek out other prey. 加强了是killerwhale捕杀sea otters的推论，correct
(B) There is no indication that the seaotter population at any North Pacific location declined in the 1980s because of substantial numbers of sea otters migrating toother locations. 无关
(C) Along the Pacific coast of NorthAmerica in the 1980s, sea otters were absent from many locations where they hadbeen relatively common in former times. 重复P，无关
(D) Following the decline in the populationof the sea otters, there was an increase in the population of sea urchins, which are sea otters' main food source. 无关
(E) The North Pacific populations of seals and sea lions cover awider geographic area than does the population of sea otters. 无关比较
23.
1) 计时：38s
2) 逻辑链
Background Information:
From 1978 to 1988, beverage containers accountedfor a steadily decreasing percentage of the total weight of household garbagein the United States.
Premise:
aluminum recycling was more widely practiced in this period than glassrecycling
Contrary Conclusion:
the weight of glass bottles in household garbage declined by a greaterpercentage than the weight of aluminum cans.
3) 推测：
glass bottles的基数很小
4) 选项分析：
(A) Glass bottles are significantly heavierthan aluminum cans of comparable size. C中说的是percentage，已经消除了这个因素
(B) Recycled aluminum cans were almost allbeverage containers, but a significant fraction of the recycled glass bottleshad contained products other than beverages. 无关
(C) Manufacturers replaced many glassbottles, but few aluminum cans, with plastic containers. 它因，correct
(D) The total weight of glass bottlespurchased by households increased at a slightly faster rate than the totalweight of aluminum cans. 反，基数变大
(E) In many areas, glass bottles had to be sorted by color of the glass before being recycled,whereas aluminum cans required no sorting. 无关
24.
1) 计时：32s
2) 逻辑链
Background Information:
when running toward an insect, the beetlesintermittently stop, and then, a moment later, resume their attack.
Hypothesis 1:
they cannot maintain their pace and must pause for a moment's rest;
hypothesis 2:
while running tiger beetles are unable to process the resulting rapidlychanging visual information, and so quickly go blind and stop.
3) 推测：
问题说的很清楚了。。支持某一hypothesis
4) 选项分析：纠结B&C
(A) When a prey insect is moved directlytoward a beetle that has been chasing it, the beetle immediately turns and runsaway without its usual intermittent stopping. 反P
(B) In pursuing a moving insect, thebeetles usually respond immediately to changes in the insect'sdirection, and pause equally frequently whether the chase is up or down anincline.支持假设1，Correct
(C) The beetles maintain a fixed timeinterval between pauses, although when an insect that had been stationarybegins to flee, the beetle increases its speed after its next pause. 可能为假设1or2
(D) If, when a beetle pauses, it has notgained on the insect it is pursuing, the beetle generally ends its pursuit. 无关
(E) When an obstacle is suddenly introducedjust in front of running beetles, the beetles sometimes stop immediately, butthey never respond by running around the barrier.无关
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发表于 2013-3-23 23:02:26
nce humans aware of these--->they cannot be made happy...
